#669F31#669F31

#669F31 is a light, vivid yellow-green. Relative luminance 0.278; OKLCH L 64.0% C 0.153 H 132.9°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#669F31
RGB	rgb(102, 159, 49)
HSL	hsl(91, 53%, 41%)
HSV	hsv(91, 69%, 62%)
CMYK	cmyk(35.8%, 0%, 69.2%, 37.6%)
CIE-LAB	lab(59.75, -37.08, 49.32)
CIE-LCH	lch(59.75, 61.70, 126.94°)
OKLab	oklab(64.05% -0.1041 0.1121)
OKLCH	oklch(64.05% 0.153 132.9)
XYZ	xyz(18.4317, 27.8420, 7.3080)
Luminance	0.2784 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669F31 #6A319F

analogous

#9D9F31 #669F31 #319F33

triadic

#669F31 #31669F #9F3166

tetradic

#669F31 #319D9F #6A319F #9F3331

square

#669F31 #319D9F #6A319F #9F3331

split-complementary

#669F31 #33319F #9F319D

monochromatic

#2A4114 #487023 #669F31 #84C647 #A3D576

Accessibility & contrast

On white

3.20

#669F31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#669F31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669F31

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669F31	#FFFFFF	#000000	##000000
##669F31	1.00	3.20	6.57	6.57
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A69321

Deuteranopia (green-blind)

#9E8E3B

Tritanopia (blue-blind)

#679989

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #669f31;
/* rgb */ color: rgb(102, 159, 49);
/* oklch */ color: oklch(64.0% 0.153 132.9);

Tailwind

colors: {
  custom: {
    50: '#96bc6f',
    500: '#669f31',
    950: '#000000',
  },
}

SCSS

$custom: #669f31;
$custom-light: #96bc6f;
$custom-dark: #000000;

JSON

{
  "hex": "#669f31",
  "rgb": {
    "r": 102,
    "g": 159,
    "b": 49
  },
  "hsl": {
    "h": 91.091,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.64047,
    "c": 0.15298,
    "h": 132.9
  },
  "luminance": 0.27843
}

Semantic roles & 50–950 ramp

primary

#669F31

secondary

#976FBD

accent

#4CDC97

background

#F9FBF6

surface

#F2F6EC

border

#CCD0C7

text

#0E1208

muted

#7E817B

Preview Lab

Preview with #669F31

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →